Plotting
 
  These programs provide facility to plot everything from USP format data
[xsd, xmplot] through flat files of x,y information [xgraph]. Some routines
can be piped into while others are meant to be used stand alone or in
conjuction with other routines. Remember that all trace data can be plotted
regardless of data type.  For instance you can get a quick look at your
velocity field by plotting your velocity data using xsd. You could also
execute: 
 
		 sis_xy -NvelData | xgraph 
 
yielding a line plot of velocity versus time. If you have very few traces
to plot or wish to plot amplitude with color try xmplot which is very nice
for these applications. As ususal if you don't see what you need or can't
figure out how to do what you want give us a call. 
